Dynamo-electric-machine structure.



J. C: LINCCLN. DYNAMC B'LECTRIC' MACHINE STRUCTURE.

' APPLICATION FILED umso, 1911. ,947; Y C Patented N0v..3,"1.914

L Q---)x Ik nerr-sn s'reirns ergeren l JOHN e, LINCOLN, onoLnvnLi-iun, onlie, sesiones, 'roanne museen ELECTRIC' veoiurnrr, oronnvnneun, 'or-iranoosroen'rron or unie.

DYNMQ-ELECTRIC-MACHENE STRUCTURE.

' of Ohio., have invented s new and useful Improvement in Dynamo Electric Machine' Structures, of wliieh the following is a. speciv 4i'cetion, the principle of the invention being hereinlexplained andthebest mede inwhieh 'l hayeeonternplated applying that principle, so ast-o distinguish it from other inven- ,tiene Y My. invention relates to dynamo electric;

machine structures `es iepted for use in either generators or motors, end `pertieularly to the freine and field construction, its object being' to provide an mening;ement whereby suoli frame andieid structure may be eeeu nominally built up end` readily assembled or disassembled.,

inafter'ully described and vpertiouleri?V set forth in the eleims.

Thel annexed drawings and thefollorving description set forth indetail certeinnieans embodying' 'rny invention, lthe disclosed means, however, constitutingV but' one oiE "various mechanical forms in Whiolrthe prineiple of the invention may be applied.

in seidl 'annexed drawingsz-`igrure l is an endfelevetion "et the frame end field oi e dynamo electrie. machine' structure ernbodying my invention, Fig.V 2 is e" section teitenV upon' the pla-rie indicated by line lle-H in Fig. Fig.' 3 isan end elevation 'of the ield.` 'I Fig. 4 is 'a perspective View of e detaillportion of the annulermember of seid field. Fig/'5 is' e perspective View of e the poleelements 'of said field. Fig. 8 is' e perspective View of one of 'seidY pole elements.

:The structure 'es yillustrezed embodies ef laminated field structure of circular outer oontour, the details of the laminated oonstruotion of which Ywill be further` hereinafter deseribed.` Near the outer edge oi this central iield structure 5A, passing therethrough longitudinally, Withthe'ir .axes pure'ilel with and equidistantly removed Jfrom the exis of saidstructure, are four cylindrioelY ,apertures n. ,y Embracing member A laterally, Iand issuing{avn` outer Cylindrical 4contour, are two `synnnetricel reme meinw bers B B, of equal outer diameter, but of Speoceton of Letters ja'tent.

The said invention consists of means here ,y apertures and 'b' Patented lier, 3, gide Y Appieation led January 30, 1911. Serial No. 505,375. y

greater outer diameter than the outerl diurne-f terni? member A, as shown in Fig. 2. Eer-l1 of' these` frame members `B B is provided 'with four cylindrical.apertures b which. register' with the apertures a, are coaxial therewith, and of equal interior diameter.

Cest upon the lower side portions .of the members B' B are feet' B B", tWo'eet being cest upon' each member, .the rfour feet thus y Aiorined forming .the support Afory the entire structure.A

' 'The outer ieee of each rnemberB is orined wir-n tour `eylindr'ical bosses E* Z1 surround- 52 are formed: v

, Mounted upon the outer ends of members i3 are end yolres C C which form lthe enfy of the` freine structure, end are provided with the beerings c c for the armature spindle and oil Welle c4 ci.' The inner feces oit' the'yoies are iornied with four: cylindrical reeesses o2 c2 equidistent from the exis of' member rl.. end haring their axes separat-ed .from each other in an angulsrdirection by fing the apertures o whereby shoulders F12 Y en are, of ",l having en interior diameter equal to .the outervv diameter or the bossesvb,

'and being 'i-ranged so as tofregister with and lresolve the-letter. The depth yoi? the reeesses, however, is greaterthen the.; depth of thebosses, es shown, whereby e free interior spese e is formed between eeen boss andthe bottom of its oorrespondingreeess. These bosses and recesses term the only, surfeces' oit the yolres and members B B which are in eontaot, and may therefore be formed by ineens of a,- drill press, eliminating all lathe *work in connection With tting their The remaining portions of the edge 'cent surtaees of mem ers B Band C C are parte,

separetedes shown at C' C'.

Passing' through each series of registering of the iield member A and 'freine members E B, is e tubular rivet F haring an outer diameter substantially equal to the inner diameter of said apertures and having its ends riveted or outwardly upset, es shown, the upset riveted portions lying in the free spaces e e', as shown in Fig.

2. Passing'- through the -yolres C- and` A through'the`tubular rivet-s, are four bolts' G1 hevingjtheir outer ends threaded .to receive nuts G G. Thesedoolts -seoure the yolres C G tothe riveted' structures consisting of niembersl A and rnernbers B B, to each other,

seen that the shoulders b2 maybe readily brought into close and intimate contact with as will bereadily understood. Thefinner.

diameter of the rivets is made less than the outer diameter of the? bolts,- so as to .permit the latter `toenter and slide through them freely". j 5

It will be seen from the vstructure as above described, that the end yokes may be readily dismounted from the interior frame struc-- ture consisting of the field member A and frame members B B. The latter being provided with feet B B', it will be seen that these yokes may be remo-ved without dis turbing the positioiiof' the' interior structure.

By providing the free spaces e e formed by-the recesses c2 and bosses b', it will be extending from one to the other, is ascover member Hin the forni of a band, whose outer diameter is equal to that ofthe outerinembers B B. This Vband therefore imparts a continuity to the outersurface of the finterior portion of the structure which eliminates ridges or shoulders, and in'addition enhances the exterior appearance of 'f the machine. As illustrated, this band may be perforated in order to allow for ventilation.

chine,

as will be readily understood, and'is secured in place' in any suitable manner, the joint formed by its abuttingends being preferably located at the lower part of the ma- The interior or centra-l'iield member A is composed of a plurality of laterally adjacent and symmetrical laminations. Fig. 3.

which together'form an outer annular field member A.y Each such lamination consists ofa lring A2 which itself'is composed of Ifour segments A3, all symmetrical in shape. -The ends a and a2 of each segment .are madeperpendicula'r to their outer circum ferential surfaces, and arel inters'ected by undercut incisions a3 and a", these incisions also intersecting the inner edgesof the segments, as shown in Fig. 4. The incisions a3, however, are of less length than the incisions a, butthe corresponding incisions of all the segments are ofequal length. When these segments are assembled to form a, complete ring, the ends a are caused 'to abut the ends a2, so as to bringen incision of' greater length in juxtaposition to an incision of lesser length. These two incisions jointly l form a dove-tail mortise of a width equal observed that in addition to being j gether by the rivets F, the laminated rings .toztne thickness ofthe lamination.y These;

segments, however, `are arranged in succeedi as to stagger, the'joint'sformed 'by the en'd'sI a .and a2 .in adjacent-,rings ,or laminatins,

as shown in dotted lines'in;V ig. 31.*#Foixned in the end, of the segments adjacent' tothe ing laminations in the reverse order with re erence tothe location of the1`mc1s1ons',"so, 5;

incisions at, are circular holes .(15, f whichV when the rings are assembled, are caused to register with each other to formthe cylin'.` drical-'apertures a adapted' to receive the rivets F, which hold the laminations together. to form the complete annular :elep ment A` of the field memberA, the` short dove-tail mortises in each llamination' all registering with eachother to forma plurality of long mortises equal in width .to the width of the element A. Each mortis receives adove-tail tenon A" formed upOIi the outer end of a pole element'A, which Aprojects yinwardly and radially, y:fand formed with the usual inner cylindrical' Additional pole piecesA1 are surface a". secured midway between the pole'ipieces As tothe element A inthe-structure illustrated,

by an ordinary--dove-tail joint. It will be held'toform a vvery compact andisecure structure,- by reason of the staggering. of the joints. Additional registering holes a7 are formed at equidistant intervalsfor the reception 'of` four rods -A8, Fig. 2, whose ends' are loosely seated in recesses b* intersecting the innerjfaces of the members B B, and which aid-in positioning the member A'with reference to the members'B B when these parts are being assembled.- l

The pole/pieces A, in the structure shown,

are formed of a' multiplicity of laminations such as are illustrated in Fig. 5; -are assemlbled prior to their insertion in the dove-tail' grooves, and secured to each other by means y of rivets a8 a8, las showiiin '6. The pole pieces A7 are formedvin a similar manner, and assembled prior to their insertion. The

circular opening formed by the flanges F b,v

is made4 slightly greater in diameter t an the'diameter of a. circle having its center upon the axis of `the member' Aj'iand'passingl through `the radially outermost points of the clove-,tail groovesfor.'receiving the pole pieces Aand A1. `These .oovesare equidistantly removedfrom said axis,- so

that all of said outermost vpoints fall upon v thecircumference of such circle, as shown in dotted lines in Fig. 3.. Bymeansofthis construction, therefore, it will be seen 'that'- the pole pieces may be slipped into place after the members A and B' B have been assembled and riveted to each other by means of the tubularrivets F. Similarly, these pole pieces -may be removed without disl assembling the parts 'just mentioned` there-.

by *contributingl to the 'Lease- .and facility of repair or replacing of parts, it being only necessary to remove the endyolies C C-Whe'n vit is desired to remove -these pole' pieces.

By'placing theaxes of the bosses bi90o f from each other, the `frame members B -B may be placedso as .to bring the feet in a longitudinal position, as shown in Fig; v1,', f

' and be there supported vupon a floor; placed in a position in which they are vertical, as

shown in dotted lines in Fig. 1, whereby theA structure may be fastened to a perpendicular @Walker placed' horizontally above, as alsoshown in dotted lines in said figure, ivliereby the machine may be fastened to a ceiling. all

. without disturbing .the position of the yokes togalways maintain these vWells in one given v C C' and hence lthe 'position o f the oil wells o", it beingundersftood that 1t is necessary position to preyieut the oil from being discharged therefr'om. v

Having fully described my invention; what I claim and desire to secure by Letters Patent is i j l 1. In a dynamo electric machine structure, the combination of a central iield member provided with a plurality of longitudinal l cylindrical openings passing therethrough and having their axes parallel to the axis of said member; two frame members embracing said field member laterally and provided with .similar apertures plassing therethrough and registering with t e apertures 1n said field member; two end yokes mounted upon the outer ends of said v frame members respectively; the outer faces ,of said frame members bein formed with cylindrical bosses surroun ing said openings; the inner faces of said yokes being provided with a siilar number of cylindrical recesses adapte to receive said bosses, said recesses being l:rivets passing through said registering cy lindrical openings and upset at their .ends to secure said central members and 'frame members to `each other; and. bolts vpassing through said yokes and registering apertures'for securing the yokes to said frame members. i

2. Ina dynamo electric machne structure, the combination of a central eld member provided with a plurality of longitudinal cylindrical openings passing therethrough and havingl their axesparallel to the axis of said member;` two frame members embracing said ieldr-inember laterally, provided with similar apertures passing'therethrough registering with the apertures in said field member, and with supporting feet; two end yokes mounted upon the outer ends of said frame members respectively; the

outer faces of said frame members beingto said frame'members; and suitable bearings for the armature shaft formed in said yokes. l 1 Signed. by me, thisl 25th day of January,

JOHN o. LINCOLN.

Attested bye A. E. MERKEL, J. G. MCMANNIS. 

